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Identify Lines of Symmetry (1)

In this worksheet, students must identify the lines of symmetry for the given 2D shapes.

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'Identify Lines of Symmetry (1)' worksheet

Key stage:  KS 2

Year:  Year 3 11+ worksheets

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Symmetry

Difficulty level:  

Worksheet Overview

A line of symmetry divides a shape into two matching parts, which will overlap each other exactly when folded along the line of symmetry.


Look at this isosceles trapezium.

Lines of symmetry


When we reflect or fold it in the line a, we get:


Reflect line a


When we reflect it in the line b, we get:

Reflect line b

This is a MATCH!


When we reflect it in the line c, we get:


Reflect line c


When we reflect it in the line d, we get:


Reflect line d

It is only in line b that we get a match.

So line b is the only line of symmetry.

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